Pseudamia amblyuroptera (Bleeker, 1856)
White-jawed cardinalfish
photo by Allen, G.R.

Family:  Apogonidae (Cardinalfishes), subfamily: Pseudamiinae
Max. size:  8.5 cm SL (male/unsexed)
Environment:  reef-associated; brackish; marine; depth range 0 - 30 m
Distribution:  Indo-West Pacific: Singapore, Java, Borneo, Philippines, Moluccas, New Guinea, Solomon Islands, Palau, and Yap in the western Caroline Islands. Recently reported from Tonga (Ref. 53797).
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 8-8; Anal spines: 2-2; Anal soft rays: 9-10; Vertebrae: 24-24. When fresh, body translucent gray, thorax and abdomen light golden; variable sized brown spots on head; golden operculum with close-set blackish spots forming broad dark stripes. Caudal fin base with a large, round, dark brown spot. Anterior nostril with long, darkly pigmented membranous flap. Posterior half of upper jaw almost white, usually with a small dark spot on the side of maxilla. Second dorsal spine longest. 39-41 scales in longitudinal series. Convex interorbital space.
Biology:  Inhabits shallow mangrove creeks and nearby shallow lagoon reefs and seagrass beds; also taken from isolated pools. Generally found in depths less than 2 m and where water condition is turbid.
IUCN Red List Status: Least Concern (LC); Date assessed: 05 February 2021 Ref. (130435)
Threat to humans:  harmless


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